Chapter 19 HW

The sensory receptors of the inner ear for equilibrium are

hair cells

During embryonic development, ___________ vessels enter the optic cup to deliver blood to the developing eye.

hyaloid

Gustatory cells are housed in special sensory organs termed

taste buds

Embryonic ear development begins during what week?

4th

Check all that are true regarding the anatomy and physiology of the sense of equilibrium.

Otoliths are small calcium carbonate crystals that are embedded within a gelatinous layer. Otoliths and the gelatinous layer form the otolithic membrane. When the head is held erect, the otolithic membrane appllies pressure directly on the hair cells.

Check all that are functions of the spiral organ in hearing.

Sound waves cause pressure waves in the fluid in the inner ear, making the basilar membrane "bounce." Movement of the basilar membrane causes distortion of stereocilia.

The vitreous humor in your eye now is the same vitreous humor that was produced during embryonic development.

True

In the image below, note the fluid that the line is pointing to. How does this fluid help in the detection of angular acceleration (rotational movements) of the head?

When the head rotates, this fluid moves and pushes against the cupula, causing bending of hair cells.

Ceruminous glands secrete ____________.

cerumen

Hearing organs are housed within the ___________ in the inner ear.

cochlea